Device for enhancing gas discharge

ABSTRACT

A vertically orientated body adapted to be clamp-mounted to the upper discharge end of a smoke or gas stack. The body rotatably mounts a vertically elongated shaft which incorporates an inclined arcuate hood thereover adapted to cover the stack and preclude the entry of water and down drafts. The hood is wind orientated through a vertical wind vane affixed thereto whereby the upper discharging portion thereof is always located downwind.

United States Cano atent 1 [4 1 Feb. 13,1973

[ DEVICE FOR ENHANCING GAS DISCHARGE [76] Inventor: Fernando Cano, 1300 Libertad,

Chihuahua, Mexico [22] Filed: March 25, 1971 [21] Appl. No.: 128,050

[52] US. Cl ..98/70, 98/68 [51] Int. Cl ..F23l 17/02 [58] Field of Search ..98/63, 67, 68, 70, 71

[56] References Cited UNITED STATES PATENTS 864,267 8/1907 Samuel ..913/67 X 1,133,324 3/1915 Sillin ....98/67 1,463,664 7/1923 Bowman..... ....98/7l 2,755,727 7/1956 Shoberg..... ..98/68 X 3,036,511 5/1962 Shoberg ..98/71 Primary Examiner-William F. ODea Assistant Examiner-Peter D. Ferguson Attorney-Clarence A. OBrien and Harvey B. Jacob- [5 7 1 ABSTRACT A vertically orientated body adapted to be clampmounted to the upper discharge end of a smoke or gas stack. The body rotatably mounts a vertically elongated shaft which incorporates an inclined arcuate hood thereover adapted to cover the stack and preclude the entry of water and down drafts. The hood is wind orientated through a vertical wind vane affixed thereto whereby the upper discharging portion thereof is always located downwind.

2 Claims, 2 Drawing Figures PATENTEDFEBIS I975 3,715,970

Fernando 6on0 (Garcia) IFS I 'ENTOK.

1 DEVICE FOR ENHANCING GAS DISCHARGE The invention herein is concerned with enhancing the exhausting of gas and smoke, and more particularly relates to a unique safety device adapted to be quickly and easily mounted on the upper end of smoke or gas stacks to function both as a means for facilitating the removal of smoke and gas therefrom and to preclude the entry of rain, downdrafts, and the like.

The device of the instant invention incorporates a rotatably mounted gas directing hood orientated by means of a superimposed wind vane. The hood, through the vane, is orientated bythe wind in a manner whereby there is a tendency for a vacuum to develop at the downwind portion of the device so as to assist in the outward movement of the smoke and/or gases. The hood is arcuately configured and so orientated as to completely overlie the stack in a manner which protects the stack from rain and downdraft, while at the same time providing no encumbrance whatsoever to the exiting of the stack discharge.

The device is compact, of an economical construction, highly efficient in operation, and easy to both mount and remove as desired.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIG. 1 is a perspective view of the device comprising the instant invention; and

FIG. 2 is a longitudinal cross-sectional view through the device illustrating the details thereof.

The gas discharge enhancing device of the instant invention is generally designated by reference numeral 10. This device is adapted to be mounted on and within the upper discharge end of a gas or smoke stack so as to facilitate and encourage the movement of the gas or smoke therefrom.

More particularly, the device includes an elongated narrow body portion 12 comprising opposed vertically orientated side panels 16 interconnected by a transverse bottom panel 18 and a transverse top panel 20. The top panel 20 projects longitudinally beyond the opposed ends of the body 12 and terminates in a pair of downturned flanges or end portions 22. These downturned end portions include internally threaded apertures therethrough which adjustably receive mounting bolts 24.

it is'contemplated that the body 12 be relatively narrow as compared to the cross-sectional area of the stack to which the device 10 is to be mounted. This body 12 is introduced into the open upper end of the stack with opposed points on the upper end of the stack received between the body ends and the outwardly orientated downturned end portions 22 of the top wall 20, the mounting screws 24 being turned inwardly so as to engage the stack top end portions and clamp the received body 12 thereto, thus effecting a mounting of the device.

The actual stack protecting and gas discharge enhancing is effected by an enlarged arcuate hood 26 which overlies the body 12 and is inclined at an upwardly directed angle thereto. The hood is mounted by a vertically elongated shaft 28 which extends rotatably through the top and bottom walls 20 and 18. The lower end of the shaft is provided with an enlarged rounded head 30 which rotatably seats on a base or base member 32 riveted or welded to the bottom wall 18 and having a downwardly offset central seat-forming portion. The upper end of the shaft 28 is threaded and the hood is directly clamped thereto by a pair of upper and lower nuts 34 which receive a central portion of the hood therebetween, the hood of course having an aperture therethrough for receiving the upper threaded portion of the bolt 28. in addition, in order to properly accommodate the hood 26 to the upper end of the bolt 28, it will be noted that the central portion of the hood includes an integrally formed downwardly offset seat portion 36. The hood 26 and shaft 28 rotate as a unit about the stack mounted body 12. If deemed necessary, appropriate bearings can be provided at those points where the bolt 28 passes through the bottom and top walls 18 and 29. The hood itself, as previously indicated, is downwardly concave and of a length and width so as to completely overlie the upper discharge end of the stack on which the device- 10 is to be mounted. I

The orientation of the upper end of the arcuate hood l2 downstream in any wind situation is continuously effected by the provision of an upstanding wind vane 38 affixed centrally to the hood 26 at the upper end portion thereof. With the use of such a vane, any wind will tend to automatically orientate the hood 26 with the upper end thereof facing downstream whereby the movement of the air will effect a partial vacuum about the upper portion of the hood which will in turn enhance and encourage the outward flow of gas and smoke. By the same token, the lower stack encircling portion of the hood 26 will preclude any movement of air into the stack such as might effect an undesirable back draft. The enlarged stack overlying nature of the hood 26 also effectively precludes the introduction of rain or the like into the stack. The arcuate upwardly angled configuration of the hood 26 is also of significance in that, even under conditions of no wind, the natural outward flow of the smoke or gas is in no way inhibited.

From the foregoing, it will be appreciated that a simple although highly unique device has been defined for effectively protecting a gas discharge stack and at the same time substantially enhancing the proper discharge of gas therefrom.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A device for enhancing gas discharge from a stack, said device comprising a stack engageable body, said body being relatively narrow and including a pair of spaced vertical side panels and an elongated horizontal upper wall overlying and interconnecting said side panels, said upper wall projecting beyond the opposed ends of said side panels and terminating in downwardly directed flanges, the projecting portions of the upper wall being adapted to seat over opposed portions of the upper end of a stack with the downwardly directed flanges positioned just outward of the stack and the side panels received within the stack, each downtumed flange including a threaded bore therethrough, and a mounting bolt threaded within said bore and selectively inwardly extensible so as to clamp the adjacent portion of a received stack end between the bolt and the corresponding ends of the side panels, an arcuate hood overlying said body, said hood inclining upwardly so as to define an upwardly and outwardly directed gas directing end, means rotatably mounting said hood on the body, and means for automatically rotating said hood in response to external wind conditions to maintain the upper gas directing end thereof in a downwind direction, said means for automatically rotating said hood comprising a vertically orientated wind vane secured in overlying relation to the upper end of said hood.

2. The device of claim 1 wherein said means for rotatably mounting said hood including a vertically elongated shaft, said hood being fixed to the upper end of said shaft, said body including a lower wall, said vertical shaft extending rotatably through said upper and lower body walls, and a base affixed to said lower wall and underlying the. lower end of the shaft below said lower wall, the lower end of the shaft incorporating bearing means thereon which rotatably seats on the base and provides a point support for the shaft and hood. 

1. A device for enhancing gas discharge from a stack, said device comprising a stack engageable body, said body being relatively narrow and including a pair of spaced vertical side panels and an elongated horizontal upper wall overlying and interconnecting said side panels, said upper wall projecting beyond the opposed ends of said side panels and terminating in downwardly directed flanges, the projecting portions of the upper wall being adapted to seat over opposed portions of the upper end of a stack with the downwardly directed flanges positioned just outward of the stack and the side panels received within the stack, each downturned flange including a threaded bore therethrough, and a mounting bolt threaded within said bore and selectively inwardly extensible so as to clamp the adjacent portion of a received stack end between the bolt and the corresponding ends of the side panels, an arcuate hood overlYing said body, said hood inclining upwardly so as to define an upwardly and outwardly directed gas directing end, means rotatably mounting said hood on the body, and means for automatically rotating said hood in response to external wind conditions to maintain the upper gas directing end thereof in a downwind direction, said means for automatically rotating said hood comprising a vertically orientated wind vane secured in overlying relation to the upper end of said hood.
 1. A device for enhancing gas discharge from a stack, said device comprising a stack engageable body, said body being relatively narrow and including a pair of spaced vertical side panels and an elongated horizontal upper wall overlying and interconnecting said side panels, said upper wall projecting beyond the opposed ends of said side panels and terminating in downwardly directed flanges, the projecting portions of the upper wall being adapted to seat over opposed portions of the upper end of a stack with the downwardly directed flanges positioned just outward of the stack and the side panels received within the stack, each downturned flange including a threaded bore therethrough, and a mounting bolt threaded within said bore and selectively inwardly extensible so as to clamp the adjacent portion of a received stack end between the bolt and the corresponding ends of the side panels, an arcuate hood overlYing said body, said hood inclining upwardly so as to define an upwardly and outwardly directed gas directing end, means rotatably mounting said hood on the body, and means for automatically rotating said hood in response to external wind conditions to maintain the upper gas directing end thereof in a downwind direction, said means for automatically rotating said hood comprising a vertically orientated wind vane secured in overlying relation to the upper end of said hood. 